EET 221/3

Three Phase Transformer. Question 1. A 20kVA 8000/480V distribution transformer has the following resistances and reactances: Rp = 32Ω Rs = 0.05Ω . Xp = 45Ω Xs = 0.06Ω. RC = 250kΩ XM = 30kΩ. The excitation branch impedances are given referred to the high-voltage side of the transformer. Find the equivalent circuit of this transformer referred to the high-voltage side. Find the per-unit ... ................
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